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How to implement a queue using two stacks?
...
Keep 2 stacks, let's call them inbox and outbox.
Enqueue:
Push the new element onto inbox
Dequeue:
If outbox is empty, refill it by popping each element from inbox and pushing it onto outbox
Pop and return the top element from outbox
Usi...
What is std::move(), and when should it be used?
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1. "What is it?"
While std::move() is technically a function - I would say it isn't really a function. It's sort of a converter between ways the compiler considers an expression's value.
2. "What does it do?"
The first thing to note is that std::move() doesn't actually...
Python argparse: How to insert newline in the help text?
... " d = delta\n"
" e = epsilon")
parser.parse_args()
Any other calls to .add_argument() where the help does not start with R| will be wrapped as normal.
This is part of my improvements on argparse. The full SmartFormatter also supports adding
the defaults to all options, and raw input o...
How to get a random number in Ruby
...2 + rand(6) + rand(6).
Finally, if you just need a random float, just call rand with no arguments.
As Marc-André Lafortune mentions in his answer below (go upvote it), Ruby 1.9.2 has its own Random class (that Marc-André himself helped to debug, hence the 1.9.2 target for that feature).
...
mkdir -p functionality in Python [duplicate]
...shell from within Python. I am looking for a solution other than a system call. I am sure the code is less than 20 lines, and I am wondering if someone has already written it?
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New to unit testing, how to write great tests? [closed]
...nd to the method (testing all codepath, expecting some inner methods to be called a number of times, with certain arguments), that it seems that if I ever refactor the method, the tests will fail even if the final behavior of the method did not change.
I think you are doing it wrong.
A unit test ...
How do you pass a function as a parameter in C?
...the proper type:
void print ( int x ) {
printf("%d\n", x);
}
Function Call
When calling a function with a function parameter, the value passed must be a pointer to a function. Use the function's name (without parentheses) for this:
func(print);
would call func, passing the print function to...
Step-by-step debugging with IPython
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You can use IPython's %pdb magic. Just call %pdb in IPython and when an error occurs, you're automatically dropped to ipdb. While you don't have the stepping immediately, you're in ipdb afterwards.
This makes debugging individual functions easy, as you can just l...
JSLint says “missing radix parameter”
I ran JSLint on this JavaScript code and it said:
11 Answers
11
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Oracle 11.2.0.4 RAC FOR redhat 6.4 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...了一个上午。
无奈之下 抱着试试看的心情打算删除RAID配置 重建之后 再次安装系统
配置RAID
开机 按F2进入 Diagnostic
然后退出
进入 Legacy usb 启动画面 然后 按CRTL+H 进入到 WEBBIOS设置画面
点击 CONFIGURATION WIAZRD 配置...